Tuesday 3/3/2015 Classifications Agenda: Cladograms Ø Notes: Cladograms and Phylogenetic Trees Ø Activity: Cladogram Practice Homework/Class Work: Ø Cladogram Worksheet due Wednesday/Thursday 3/4 -3/5/2015 for 20 Points
Building Family Trees • Phylogeny - Evolutionary history of an organism and its relationship to other species • Cladogram- Evolutionary lineage based on PHENOTYPES • Phylogenetic trees Evolutionary lineage based on GENOTYPES
Cladogram • Diagram showing how organisms are related based on shared / derived characteristics such as feathers, hair, or scales copyright cmassengale 3
Cladogram vocabulary • 1. Ancestral Character: A trait that evolved in a common ancestor. • Example: Between birds and mammals, the backbone is an ancestral character. • 2. Derived character: A trait that evolved in the ancestor of 1 group, but not in another. • Example: Feathers; feathers evolved in an ancestor of birds that was not also ancestral to mammals copyright cmassengale 4
Primate Cladogram copyright cmassengale 5
Notebook Checks!!! • Please take out your notebook check trackers! • Please write the following assignments in on your paper: • • • Cacti Picture and Questions (20 Points) 10 Examples of Natural Selection Questions (20 Points) Classifications Foldable (10 Points) Iceman Murder Mystery Worksheet (10 Points) Anatomical Records Foldable (20 Points) Total = 80 Points